<template>
  <section>
    <!--工具条-->
    <el-col :span="24" class="toolbar" style="padding-bottom: 0px;">
      <el-form :inline="true">
        <el-form-item>
          <el-input v-model="keyword" placeholder="请输入参数"></el-input>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" @click="keywordQuery">查询</el-button>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" @click="handleAdd">新增</el-button>
        </el-form-item>
      </el-form>
    </el-col>

    <!--列表-->
    <el-table border :data="menus" highlight-current-row v-loading="listLoading" @selection-change="selsChange"
              style="width: 100%;">
      <el-table-column type="selection" width="55">
      </el-table-column>
      <el-table-column type="index" width="60">
      </el-table-column>
      <el-table-column prop="name" label="部门名称" width="120" sortable>
      </el-table-column>
      <el-table-column prop="component" label="组件路径" width="100">
      </el-table-column>
      <el-table-column prop="url" label="访问路径" width="100">
      </el-table-column>
      <el-table-column prop="parentId" label="父级菜单" width="100">
      </el-table-column>
      <el-table-column prop="icon" label="图标" width="100">
      </el-table-column>
      <el-table-column prop="state" label="状态" width="120" sortable>
        <template scope="scope">
          <span style="color: #11b95c" v-if="scope.row.state">启用</span>
          <span style="color: red" v-else>禁用</span>
        </template>


      </el-table-column>
      <el-table-column label="上级菜单" width="100">
        <template scope="scope">
          <span style="color: #11b95c" v-if="scope.row.parentId">{{ scope.row.name }}</span>
          <span style="color: red" v-else>无上级菜单</span>
        </template>
      </el-table-column>
      <el-table-column label="操作">
        <template scope="scope">
          <el-button size="small" @click="handleSave(scope.$index, scope.row)">编辑</el-button>
          <el-button type="danger" size="small" @click="handleDel(scope.$index, scope.row)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <!--工具条-->
    <el-col :span="24" class="toolbar">
      <el-button type="danger" @click="batchRemove" :disabled="this.sels.length===0">批量删除</el-button>
      <el-pagination layout="prev, pager, next" @current-change="handleCurrentChange" :page-size="pageSize"
                     :total="totals" :current-page="currentPage" style="float:right;">
      </el-pagination>
    </el-col>

    <!--编辑界面-->

    <!--
         :title="title"  - 标题
         :visible.sync="saveFormVisible" - 控制对话框是否显示
         :close-on-click-modal="false" - 点击框外的区域不关闭
           :model="saveForm" - 表单数据是一个对象
           label-width="80px" - 标签的宽度
           :rules="saveFormRules" - 表单项验证
           ref="saveForm" - 给当前表单取一个名称 - 用来做表单验证
           prop="name" 需要验证就加上这个属性
       -->
    <!--添加和修改的对话框：根据表字段分析-->
    <!--
      :title="title"  - 标题
      :visible.sync="saveFormVisible" - 控制对话框是否显示
      :close-on-click-modal="false" - 点击框外的区域不关闭
        :model="saveForm" - 表单数据是一个对象
        label-width="80px" - 标签的宽度
        :rules="saveFormRules" - 表单项验证
        ref="saveForm" - 给当前表单取一个名称 - 用来做表单验证[只要表单项验证不通过，就不会提交数据]
    -->
    <el-dialog :title="title" :visible.sync="saveFormVisible" :close-on-click-modal="false">
      <el-form :model="saveForm" label-width="80px" :rules="saveFormRules" ref="saveForm">
        <!-- prop="name" 需要验证就加上这个属性，不需要验证就不加 -->
        <el-form-item label="菜单名称" prop="name">
          <el-input v-model="saveForm.name" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="菜单组件" prop="component">
          <el-input v-model="saveForm.component" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="菜单路径" prop="url">
          <el-input v-model="saveForm.url" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="菜单排序">
          <el-input-number v-model="saveForm.index" auto-complete="off"></el-input-number>
        </el-form-item>
        <el-form-item label="上级菜单" prop = "parent_id">
          <el-cascader v-model="saveForm.parentId"
                       :options="menuTree"
                       :props="{
                checkStrictly: true,
                label: 'name', // 级联框显示那个属性的值
                value: 'id'    // 回显时需要,回传值的时候也需要
              }"
                       clearable></el-cascader>
        </el-form-item>
        <el-form-item label="菜单简介">
          <el-input v-model="saveForm.intro" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="菜单状态">
          <el-radio-group v-model="saveForm.state">
            <el-radio class="radio" :label="true">启用</el-radio>
            <el-radio class="radio" :label="false">禁用</el-radio>
          </el-radio-group>
        </el-form-item>
      </el-form>
      <!--
        @click.native="saveSubmit" - 点击提交的时候调用saveSubmit方法
        :loading="saveLoading" - 提交的加载加载框
      -->
      <div slot="footer" class="dialog-footer">
        <el-button @click.native="saveFormVisible = false">取消</el-button>
        <el-button type="primary" @click.native="saveSubmit" :loading="saveLoading">提交</el-button>
      </div>
    </el-dialog>
  </section>
</template>

<script>
export default {
  data() {
    return {
      menus: [],
      totals: 0,
      currentPage: 1,
      pageSize: 5,
      listLoading: false,
      keyword: '',
      sels: [],//列表选中列
      managers: [],

      //模型数据
      menuTree: [],

      filters: {
        name: ''
      },
      title: '',
      saveFormVisible: false,//编辑界面是否显示
      saveLoading: false,//加载框
      saveFormRules: {
        //表单项里面的prop属性
        name: [
          {required: true, message: '请输入员工姓名', trigger: 'blur'}
        ],
        sn: [
          {required: true, message: '请输入部门编号', trigger: 'blur'}
        ],
        parent_id: [
          {required: true, message: '请选择员工角色', trigger: 'blur'}
        ],
      },
      //对话框数据
      saveForm: {
        id: null,
        name: '',
        component:'',
        url: '',
        state: 1,
        intro:'',
        parentId: null
      },

      addFormVisible: false,//新增界面是否显示
      addLoading: false,
      addFormRules: {
        name: [
          {required: true, message: '请输入姓名', trigger: 'blur'}
        ]
      },


    }
  },
  methods: {


    //1.获取用户列表
    getMenus() {
      let para = {
        currentPage: this.currentPage,
        pageSize: this.pageSize,
        keyword: this.keyword,
      };
      this.listLoading = true;

      this.$http.post("/menu", para).then(res => {
        this.totals = res.data.totals;
        this.menus = res.data.data;
        this.listLoading = false
      }).catch(res => {
        this.$message.error("网络繁忙，请稍后再试")
      })

    },

    //2.点击分页
    handleCurrentChange(currentPage) {
      this.currentPage = currentPage;
      this.getMenus()
    },

    //3.高级查询
    keywordQuery() {
      this.currentPage = 1;
      this.getMenus()
    },

    //4.删除的方法
    handleDel: function (index, row) {
      this.$confirm('确认删除该记录吗?', '提示', {
        type: 'warning'
      }).then(() => {
        this.listLoading = true;
        //NProgress.start();
        this.$http.delete("/menu/" + row.id).then(res => {
          if (res.data.success) {
            this.$message.success("删除成功")
            //删除优化：计算总页数
            var totalPage = Math.ceil(this.totals / this.pageSize)

            if (this.currentPage == totalPage && (this.totals - 1) % this.pageSize == 0 && this.currentPage != 1) {
              this.currentPage = this.currentPage - 1
            }

            this.getMenus()
          } else {
            this.$message.error("系统繁忙，请稍后再试")
          }
        }).catch(res => {
          this.$message.error("系统繁忙，请稍后再试")
        })

      }).catch(() => {

      });
    },

    //5.点击添加批量删除
    selsChange: function (sels) {
      this.sels = sels;
    },

    //6.批量删除的方法
    batchRemove: function () {
      var ids = this.sels.map(item => item.id);
      this.$confirm('确认删除选中记录吗？', '提示', {
        type: 'warning'
      }).then(() => {
        this.listLoading = true;
        //NProgress.start();
        this.$http.patch("/menu", ids).then(res => {
          if (res.data.success) {
            this.$message.success("删除成功")
            //跳转第一页
            this.currentPage = 1
            //调用方法
            this.getMenus()
          } else {
            this.$message.error("系统繁忙，请稍后再试")
          }
        }).catch(res => {
          this.$message.error("系统繁忙，请稍后再试")
        })

      });
    },

    //7.点击编辑按钮弹出对话框
    handleSave: function (index, row) {
      //动态修改标题
      this.title = "修改";
      //显示对话框
      this.saveFormVisible = true;
      //回显数据
      //克隆对象防止列表中的数据也发生改变
      this.saveForm = Object.assign({}, row);

      this.getMenuTree()
    },

    //8.点击添加按钮弹出对话框
    handleAdd: function () {
      //动态修改标题
      this.title = "添加";
      this.saveForm = {
        id: null,
        name: '',
        component:'',
        url: '',
        state: 1,
        intro:'',
        parentId: null
      };
      this.saveFormVisible = true;

      this.getMenuTree()
    },

    //9.编辑
    saveSubmit: function () {
      //将所有ref表单【ref="saveForm"】,validate-验证
      //valid - 只要有一个表单项验证不通过返回false，只有所有表单项验证通过，才返回true
      this.$refs.saveForm.validate((valid) => {
        if (valid) {
          this.$confirm('确认提交吗？', '提示', {}).then(() => {
            //显示提交的加载框
            this.saveLoading = true;

            //NProgress.start();
            let para = Object.assign({}, this.saveForm);
            if (para.parentId == null || para.parentId.length == 0) {
              para.parentId = null;
            } else if (para.parentId.length != 0) {
              para.parentId = para.parentId[para.parentId.length - 1]
            }
            this.$http.put("/menu", para).then(res => {
              //关闭提交的加载框
              this.saveLoading = false;
              //关闭对话框
              this.saveFormVisible = false;
              if (res.data.success) {
                this.$message.success("提交成功")
                this.getMenus()
              } else {
                this.$message.error("系统繁忙，请稍后再试")
              }
            }).catch(res => {
              this.$message.error("系统繁忙，请稍后再试")
            })

          });
        }
      });
    },


    //11.获取部门数
    getMenuTree() {
      this.$http.get("/menu/menuTree").then(res => {
        //将所有的员工赋值给managers
        this.menuTree = res.data
      })
    },


  },
  mounted() {
    this.getMenus();
  }
}

</script>

<style scoped>

</style>